How to set Docker image name when "testcontainers.reuse.enable=true"?

[jehrenzweig-leagueapps]

Today, I setup a Quarkus application that uses DevServices to provision a MySQL database:

"%dev":
  quarkus:
    profile: dev
    datasource:
      db-kind: mysql
      devservices:
        enabled: true
        username: root
        password: messingaround
        db-name: TEST_DB
        port: 54321

I then created a new .testcontainers.properties file in my macOS user profile's root folder, to ensure the Docker image wasn't destroyed when Quarkus stopped running locally:

cd ~/
echo testcontainers.reuse.enable=true > .testcontainers.properties

Good stuff. However, I'd like to be able to set the name of the Docker image, so that I more easily recognize it when I'm looking at my list of images in Docker Desktop. Is there any way of doing this?

[gsmet]

From what I can see, you can do it with something like what is exposed here in Testcontainers: testcontainers/testcontainers-java#1430 .

The dev services layer doesn't expose the ability to configure this though.

It's something that could probably be added relatively easily in Quarkus if you wanted to do it. But keep in mind that the people in the Testcontainers issue weren't that thrilled about the idea.

[jehrenzweig-leagueapps]

The Testcontainers folks' reasoning makes sense: choosing a static name increases the likeliness of collisions. What I'd like to do is compromise: add a static prefix (e.g. widget-db) to the randomly generated name Testcontainers assigns to the Docker container (e.g. funky_walrus) so that the container is more easily recognizable at first glance (e.g. widget-db-funky_walrus).

Somebodysuggested the same idea on the page you linked me to: testcontainers/testcontainers-java#1430 (comment)

[jehrenzweig-leagueapps]

Just reading up a bit more... maybe a Docker label is what I need? That seems to be metadata key-value pairs that don't monkey with the image name or tag. Is there a way to add a label to the Docker container that Testcontainers creates?

AFAIK Docker labels can only be added to a container when it's first created from the Docker image. That behavior works just fine for me, since I only want to set that nickname the first time the container is created. Not sure how I'd wire that up in Quarkus yet, though...